[patch 1/14] s3c2412/s3c2413 support

[Koen Martens]

Added s3c2412 detection.

Signed-off-by: Koen Martens <gmc@xxxxxxxxxxxx>


--- linux-2.6.15.4/arch/arm/mach-s3c2410/cpu.c    2006-02-10 
08:22:48.000000000 +0100
+++ golinux/arch/arm/mach-s3c2410/cpu.c    2006-03-03 11:30:43.000000000 
+0100
@@ -41,6 +41,7 @@
#include "cpu.h"
#include "clock.h"
#include "s3c2410.h"
+#include "s3c2412.h"
#include "s3c2440.h"

struct cpu_table {
@@ -58,6 +59,7 @@
static const char name_s3c2410[]  = "S3C2410";
static const char name_s3c2440[]  = "S3C2440";
static const char name_s3c2410a[] = "S3C2410A";
+static const char name_s3c2412[]  = "S3C2412";
static const char name_s3c2440a[] = "S3C2440A";

static struct cpu_table cpu_ids[] __initdata = {
@@ -99,6 +101,19 @@
    }
};

+static struct cpu_table alternative_cpu_ids[] __initdata = {
+       {
+               .idcode         = 0x32410002,
+               .idmask         = 0xffffffff,
+               .map_io         = s3c2412_map_io,
+               .init_clocks    = s3c2412_init_clocks,
+               .init_uarts     = s3c2412_init_uarts,
+               .init           = s3c2412_init,
+               .name           = name_s3c2412
+        }
+};
+
+
/* minimal IO mapping */

static struct map_desc s3c_iodesc[] __initdata = {
@@ -110,13 +125,16 @@


static struct cpu_table *
-s3c_lookup_cpu(unsigned long idcode)
+s3c_lookup_cpu(unsigned long idcode,int alt)
{
    struct cpu_table *tab;
    int count;
+    int size;

-    tab = cpu_ids;
-    for (count = 0; count < ARRAY_SIZE(cpu_ids); count++, tab++) {
+    tab = alt?alternative_cpu_ids:cpu_ids;
+    size = alt?ARRAY_SIZE(alternative_cpu_ids):ARRAY_SIZE(cpu_ids);
+
+    for (count = 0; count < size; count++, tab++) {
        if ((idcode & tab->idmask) == tab->idcode)
            return tab;
    }
@@ -154,7 +172,11 @@
    iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));

    idcode = __raw_readl(S3C2410_GSTATUS1);
-    cpu = s3c_lookup_cpu(idcode);
+    cpu = s3c_lookup_cpu(idcode,0);
+    if (cpu == NULL) {
+        idcode = __raw_readl(S3C2412_GSTATUS1);
+        cpu = s3c_lookup_cpu(idcode,1);
+    }

    if (cpu == NULL) {
        printk(KERN_ERR "Unknown CPU type 0x%08lx\n", idcode);

--
K.F.J. Martens, Sonologic, http://www.sonologic.nl/
Networking, hosting, embedded systems, unix, artificial intelligence.
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